# SDR UPS05444712

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2005
- Submitted: June 20, 2005
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: S135610A
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05444712

## Discrepancy

PS EMERGENCY EXIT LIGHT IN OVERHEAD FWD OF LAVATORY COMES ON ONLY MOMENTARILY THEN GOES OUT.  REPLACED EMERGENCY LIGHT BATTERY PACK PER M/M 33-51-07.  OPS CHECK GOOD.

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